Picozu Editor is a drawing and photo retouching application built on Javascript, HTML 5 and CSS3. Make sure you use a modern browser (Firefox 5, Safari 5, Chrome, Opera 10, Internet Explorer 9) if you want to play with it.
The aim of Picozu is to support brushes, filters, dynamic windows, HSL, CYMK, layers, actions history, batch processing, primitives, curves (quadratic and bezier), complex polygons, texture rendering, cropping and many more.